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Diffstat (limited to 'src/libsystemd-bus/bus-control.c')
| -rw-r--r-- | src/libsystemd-bus/bus-control.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/src/libsystemd-bus/bus-control.c b/src/libsystemd-bus/bus-control.c new file mode 100644 index 0000000000..e4cc251a4b --- /dev/null +++ b/src/libsystemd-bus/bus-control.c @@ -0,0 +1,322 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <stddef.h> +#include <errno.h> + +#include "strv.h" + +#include "sd-bus.h" +#include "bus-internal.h" +#include "bus-message.h" + +const char *sd_bus_get_unique_name(sd_bus *bus) { + if (!bus) + return NULL; + + return bus->unique_name; +} + +int sd_bus_request_name(sd_bus *bus, const char *name, int flags) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + uint32_t ret; + int r; + + if (!bus) + return -EINVAL; + if (!name) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "RequestName", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "su", name, flags); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); + if (r < 0) + return r; + + r = sd_bus_message_read(reply, "u", &ret); + if (r < 0) + return r; + + return ret; +} + +int sd_bus_release_name(sd_bus *bus, const char *name) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + uint32_t ret; + int r; + + if (!bus) + return -EINVAL; + if (!name) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "ReleaseName", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", name); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); + if (r < 0) + return r; + + r = sd_bus_message_read(reply, "u", &ret); + if (r < 0) + return r; + + return ret; +} + +int sd_bus_list_names(sd_bus *bus, char ***l) { + _cleanup_bus_message_unref_ sd_bus_message *m1 = NULL, *reply1 = NULL, *m2 = NULL, *reply2 = NULL; + _cleanup_strv_free_ char **a = NULL, **b = NULL; + char **x = NULL; + int r; + + if (!bus) + return -EINVAL; + if (!l) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "ListNames", + &m1); + if (r < 0) + return r; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "ListActivatableNames", + &m2); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m1, (uint64_t) -1, NULL, &reply1); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m2, (uint64_t) -1, NULL, &reply2); + if (r < 0) + return r; + + r = sd_bus_message_read(reply1, "as", &a); + if (r < 0) + return r; + + r = sd_bus_message_read(reply2, "as", &b); + if (r < 0) + return r; + + x = strv_merge(a, b); + if (!x) + return -ENOMEM; + + *l = strv_uniq(x); + return 0; +} + +int sd_bus_get_owner(sd_bus *bus, const char *name, char **owner) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + int r; + + if (!bus) + return -EINVAL; + if (!name) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "GetNameOwner", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", name); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); + if (r < 0) + return r; + + return sd_bus_message_read(reply, "s", owner); +} + +int sd_bus_get_owner_uid(sd_bus *bus, const char *name, uid_t *uid) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + uint32_t u; + int r; + + if (!bus) + return -EINVAL; + if (!name) + return -EINVAL; + if (!uid) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "GetConnectionUnixUser", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", name); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); + if (r < 0) + return r; + + r = sd_bus_message_read(reply, "u", &u); + if (r < 0) + return r; + + *uid = (uid_t) u; + return 0; +} + +int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + uint32_t u; + int r; + + if (!bus) + return -EINVAL; + if (!name) + return -EINVAL; + if (!pid) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "GetConnectionUnixUser", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", name); + if (r < 0) + return r; + + r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); + if (r < 0) + return r; + + r = sd_bus_message_read(reply, "u", &u); + if (r < 0) + return r; + + if (u == 0) + return -EIO; + + *pid = (uid_t) u; + return 0; +} + +int sd_bus_add_match(sd_bus *bus, const char *match) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + int r; + + if (!bus) + return -EINVAL; + if (!match) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "AddMatch", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", match); + if (r < 0) + return r; + + return sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); +} + +int sd_bus_remove_match(sd_bus *bus, const char *match) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + int r; + + if (!bus) + return -EINVAL; + if (!match) + return -EINVAL; + + r = sd_bus_message_new_method_call( + bus, + "org.freedesktop.DBus", + "/", + "org.freedesktop.DBus", + "RemoveMatch", + &m); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "s", match); + if (r < 0) + return r; + + return sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply); +} |